Bed sheet retainer



FIG. 1 is a perspective view of a bed sheet retainer showing my new design;

FIG. 2 is a cross sectional view thereof taken through any point along the length of the bed sheet retainer;

FIG. 3 is an exploded view of the outer surface thereof taken along any point of the bed sheet retainer, the inner surface having the same appearance; and,

FIG. 4 is a perspective view thereof showing the bed sheet retainer in place.

The broken lines shown in FIG. 4 illustrate the environment only and form no part of the claimed design. 

CLAIM The ornamental design for a bed sheet retainer, as shown and described. 